Science & Mathematics - 10 January 2007

3x^2y+5xy

2007-01-10 05:51:48 · 5 answers · asked by Dre 1 in Mathematics

2007-01-10 05:51:19 · 7 answers · asked by Anonymous in Weather

global warming

2007-01-10 05:50:54 · 3 answers · asked by Paige G 1 in Weather

2007-01-10 05:50:48 · 20 answers · asked by basebam1967 1 in Biology

To remove the smoke, the driver opens his window just a bit. Explain why the smoke is drawn to and out of the driver's window....

2007-01-10 05:48:05 · 11 answers · asked by Vanessa M 1 in Physics

okay this is pissing me off i think i get it and then its wrong, its so frustrating HELP!

1.Simplify 8x-8y / 8x+ 8y and select the answer with the appropriate restrictions for the variables.

i thought that it would be x-y/x+y but what are the restrictions?

2. Simplify 4p^2 -8p / 4p^3 and select the answer with the appropriate restrictions for the variables.
a. p+2 / p^2 (p= 0)
b. p-2 / p^2 (p= 0)
c. p-2 / -p^2 (p= 0)
d. -p-2 / p^2 (p= 0)

3.Simplify 4b^2 - 5b -6 / 8b^2 +6b and select the answer with the appropriate restrictions for the variables.
A. b-2/ 2b (b=0,b=-3/4)
B. -b+2/ 2b (b=0,b=-3/4)
C. b-2 / -2b (b=0)
D. b-2 / 2b (b=-3/4)

4. Solve for x in the equation ax + bx = a2 + 2ab + b2 and select the answer with the appropriate restrictions for the variables.
a. x= a-b (a=-b)
b. x= a+b (a=-b)
c. x= a+b, no restricitions
d. x= a-b, no restrictions

2007-01-10 05:47:46 · 7 answers · asked by Anonymous in Mathematics

2007-01-10 05:46:58 · 6 answers · asked by pkbrauer 1 in Mathematics

2007-01-10 05:46:37 · 1 answers · asked by bashir_khan88 1 in Biology

2C(s) + 2H2O(l) ==> CH4(g) + CO2(g)

A. What mass of carbon is needed to produce 16.04 L of methane at STP?

B.What volume of carbon dioxide at STP is produced from 829 g of carbon?

Ok, I need help, I have tried these problems and I think I have the correct answer.
A.17.2 g
B.773 L
PLEASE HELP!

2007-01-10 05:46:09 · 2 answers · asked by Domino 1 in Chemistry

2007-01-10 05:43:48 · 4 answers · asked by Genio 5 in Physics

- -6F
- 32F
- 68F
- 136F

2007-01-10 05:42:30 · 5 answers · asked by Anonymous in Chemistry

2007-01-10 05:41:32 · 6 answers · asked by Anonymous in Biology

2007-01-10 05:41:32 · 4 answers · asked by bashir_khan88 1 in Biology

Which comes first and what would you say is needed the most or does it all really depend on what your doing?

2007-01-10 05:40:29 · 5 answers · asked by retrogamer4ever 3 in Mathematics

2007-01-10 05:39:47 · 1 answers · asked by bashir_khan88 1 in Biology

I thought of this quote to put on the T-shirt of the Dept of Chemical Engg., A.C.Tech.

The reference is to the quote " Some see the glass as half-full, some see it as half-empty ".

"Over-designed" is a chemical engineering term that means you design equipment that can take more load than you're going to put now, so that the capacity can be expanded later on.
A glass half-full is over-designed - to a chemical engineer.

2007-01-10 05:39:14 · 4 answers · asked by Anonymous in Engineering

2007-01-10 05:37:58 · 8 answers · asked by Birtie 1 in Weather

2007-01-10 05:35:20 · 14 answers · asked by Ryan H 2 in Physics

what is their range?

2007-01-10 05:33:42 · 16 answers · asked by Kripster 1 in Zoology

Where can someone find such harmless chemicals for home projects?

2007-01-10 05:32:25 · 3 answers · asked by legionmk59 1 in Chemistry

All all hybrid car use same battery voltage? What is the battery voltage in general? Why the manufacture don't install solar panel on the top of the car to charge up the battery even the car is parking. The solar panel can be a thin and less wind resistance as possible or even stick at the top of the car, so no wind resistance. A solar panel, in general of that size, just cost around 300 to 400, compare to a 20k hybrid car, it is just a small cost.. But in long term, it generate lot of energy to charge up the car.

2007-01-10 05:31:40 · 3 answers · asked by HaveANiceDay 2 in Engineering

2007-01-10 05:28:34 · 4 answers · asked by Anonymous in Weather

2007-01-10 05:28:32 · 5 answers · asked by Anonymous in Chemistry

2007-01-10 05:28:10 · 8 answers · asked by pkbrauer 1 in Mathematics

2007-01-10 05:27:08 · 12 answers · asked by pansy 1 in Zoology

2007-01-10 05:26:15 · 5 answers · asked by comet girl...DUCK! 6 in Zoology

you may see one of my questions like this doing reasearc is the reason. any links are useful too!! have same look of different or same with different names??

2007-01-10 05:26:12 · 4 answers · asked by Genius 2 in Zoology

2007-01-10 05:25:44 · 7 answers · asked by Anonymous in Chemistry

I have Russian binoculars (BPC 7x50), looks like, maybe WWII or fow years latter, I dont know... Anyway, it has 2 pairs of glasses that you can put over normal, colorless glas (the ones through you look), one pair is red (when you look through it the picture is orange), and others are green. What is the purpose of these glasses??

2007-01-10 05:25:18 · 5 answers · asked by Dea7h 2 in Astronomy & Space

Biochemistry, Biomedicine, Bioinformatics, Biotechnology, etc

2007-01-10 05:25:11 · 1 answers · asked by Anonymous in Biology